McQuay Suite II Comfort ConditionersDependable Operation One inoperable unit does not affect the operation of the en-tire building. The inoperable unit can be repaired or replaced

McQuay Suite™ II Comfort Conditioners

C: 1330-3

Catalog 1350-6

®

Single Motor (Standard) and Dual Motor (Premium) Units

Packaged Terminal Air Conditioner (PTAC) Models PSEx, PDEx

Packaged Terminal Heat Pump (PTHP) Models PSHx, PDHx

Catalog 1350 / Page 2 of 40 (5-04)

McQuay Suite™ II PTAC/PTHP ConditionersSingle Motor (Standard) and Dual Motor (Premium)

PSEx, PSHx, PDEx, PDHx

Table of Contents

Model Nomenclature ............................................................. 3

Suite II Introduction ........................................................... 3-4

Design Features .................................................................. 5-9

Application Considerations ......................................... 10-16

Typical Wall Construction Types ................................... 10

Wall Sleeve Installation .................................................. 11

Drain Kits ....................................................................... 11

Typical Wall Construction & Installation Examples ..... 12-15

Panel Wall Installation Using Electrical Subbase .......... 12

Louver Frames ..................................................................... 12

Electrical Subbase Details ................................................... 12

Panel Wall Installation with No Subbase ....................... 12

Frame & Brick with Electrical Subbase ......................... 13

Frame & Brick with No Subbase ................................... 13

Panel Wall Installation with Hydronic Subbase ............. 14

Frame & Brick Installation with Hydronic Subbase ...... 14

Hydronic Subbase Details ................................................... 14

Masonry Wall Installation with Electrical Subbase ....... 15

Masonry Wall Installation with Hydronic Subbase ........ 15

Wall Sleeve Extension Details ............................................. 15

Electrical Considerations ..................................................... 16

Performance & Electrical Data ................................... 17-18

Dual Motor (PDEx - PDHx) .......................................... 17

Nema Electrical Receptales ........................................... 17

Single Motor (PSEx - PSHx) ......................................... 18

Unit Dimensions ............................................................ 18

Capacity Charts .............................................................. 19-20

Wiring Diagrams .......................................................... 21-28

PTAC (1-Motor) Standard Manual Changeover ............ 21

PTAC (2-Motor) Standard Manual Changeover ............ 22

Heat Pump (1-Motor) Standard Manual Changeover .... 23

Heat Pump (2-Motor) Standard Manual Changeover .... 24

Hot Water Heat w/Normally Open Valve (1-Motor) ...... 25

Hot Water w/Normally Open Valve (2-Motor) .............. 26

Steam Heat w/Normally Closed Valve (1-Motor) .......... 27

Steam Heat w/Normally Closed Valve (2-Motor) .......... 28

Field Installed Accessories ........................................... 29-32

Seacoast Construction ......................................................... 33

Energy Saving Options ................................................... 34-36

Engineering Guide Specifications ............................... 37-39

Shipping Weights ................................................................. 39

“McQuay” and “Incremental” are registered trademarks ofMcQuay International.

©2004 McQuay InternationalBulletin illustrations cover the general appearance of McQuay productsat the time of publications and we reserve the right to make changes in

design and construction at any time without notice.

Catalog 1350 / Page 3 of 40 (5-04)

Product CategoryP = PTAC (Type J)

Product IdentifierSEA = A/C w/Electric Heat &Automatic OA Damper (see below)

Design Series1 = A Design (Flat top)2 = B Design (Slope top)

Nominal Capacity007 = 7,000009= 9,000012= 12,000015 = 15,000

VoltageC= 208-60-1E = 208/230-60-1J = 265-60-1P = 208/230-115-60-1R = 265-115-60-1T = 208/208-60-1

Coil Options(none)

Heating Options35 = 2.5 kw41= 3.5 kw48 = 5.0 kw (230 & 265V) 4.0 kw (208V)60 = Universal Electric (2.0 – 4.8 kw)62= Hot Water, Normally Open Valve63 = Steam, Normally Closed Valve00 = None (Cooling Only)

Model Nomenclature

P SEC 1 009 C Z 41 Z 12 AQ 14 C 1 A 1

Product Style1 = 1st Style Change

SKU TypeA = StockB = Quick ShipC = Tailored

Color1 = Antique Ivory

Power ConnectionC = Cord

Return Air14 = Bottom

DischargeAQ = Slope Top

Controls12 = Unit-Mount MCO

Hand OrientationZ = Not Applicable

McQuay Suite II Packaged Terminal Air Conditioners are certified in accordance with the Packaged Terminal Air-Conditioners certification program which is based on ARIStandard 310 and in accordance with the Packaged Terminal Heat Pump certification program, which is based on ARI standard 380.

SEA = A/C w/Electric Heat & Automatic OA DamperSEC = A/C w/Electric Heat & Corrosion ProtectionSEH = A/C w/Hydronic Heat & Standby (Emergency Power)SEI = A/C w/Electric Heat & IAQ Power Vent KitSES = A/C & Heating (Elec/Hyd) ChassisSHA = H/P w/Electric Heat & Automatic OA DamperSHC = H/P w/Electric Heat & Corrosion ProtectionSHI = H/P w/Electric Heat & IAQ Power Vent KitSHS = H/P w/Electric Heat

Suite II PTAC/PTHP Product Identifiers

Note: For illustrative purposes only. Not all options available with all models. Please consult McQuay Sales Representative for specific availability.

DES = Suite II, 2 Motor, A/C & Heating (Elect/Hydr) ChassisDEA = Suite II, 2 Motor, Automatic DamperDEC = A/C & Elec/Hyd Htg Chassis w/Corr. ProtectionDEH = Suite II, 2 Motor, Hydronic w/StandbyDEI = Suite II, 2 Motor, IAQDHA = Suite II, 2 Motor, Heat Pump, Automatic DamperDHC = H/P w/Electric Heat & Corrosion ProtectionDHI = Suite II, 2 Motor, Heat Pump, IAQDHS = H/P w/Electric Heat

Catalog 1350 / Page 4 of 40 (5-04)

IntroductionPTAC/PTHP conditioners are self-contained units that pro-

vide a decentralized heating and cooling system for the perim-eter spaces of multi-room and multi-story buildings. The sys-tem offers several advantages versus central systems.

Lower First CostThere is no need for the expensive duct work, central power

plant, or miles of piping that are required with central systems.Capital costs can be reduced by only providing units to indi-vidual spaces as they become occupied.

Easy System DesignWithout duct work, piping or a central power plant, the sys-

tem design is greatly simplified, allowing more time to be de-voted to other areas and reducing overall job costs.

Architectural Design FreedomThere is no need for large mechanical equipment rooms with

decentralized systems, which can provide increased space avail-able for lease. Because expensive duct work is also eliminated,the floor-to-floor distances can be reduced without loweringceiling heights.

Comfort On DemandRoom occupants can easily customize their environment to

meet their comfort preferences. Cooling one room while simul-taneously heating another is easily accomplished without con-tinuously operating a central chiller and boiler.

Inherent EconomyThere is no need to condition an entire building to provide

comfort to one tenant working after hours. Comfort condition-ing can be provided to that space while the rest of the buildingoperates on “night setback.”

Dependable OperationOne inoperable unit does not affect the operation of the en-

tire building. The inoperable unit can be repaired or replacedvery quickly, without disruption to adjacent spaces, to reduce“down time” to that space. During power outages, unit fans andhydronic valves can operate with an emergency standby poweroption. For hospitals and nursing homes, this means uninter-rupted heating and ventilation.

Easy MaintenanceUnits are designed with low maintenance requirements and

only a minimal maintenance department is required. The slide-out chassis allows one person to remove and replace an inoper-able unit. The inoperable chassis can then be taken to the main-tenance room to be cleaned, bench tested and placed in stockfor future use.

Centralized ControlUnits can be monitored and controlled from a convenient

central location using an energy management control device.This allows units to be turned off in unoccupied spaces andprovides “night setback” or “holiday setback” control to con-

serve energy and reduce operating costs. Sophisticated energymanagement controls monitor total building conditions andautomatically modulate units as the heating or cooling load foreach space demands.

McQuay Suite™ II packaged terminal air conditioners andheat pumps (PTAC/PTHP) are designed to satisfy the most strin-gent requirements of individually zoned heating and coolingapplications. Combining the rugged reliability with the func-tion, economy and beauty of competitive PTAC/PTHP systems,the Suite II is the ideal solution for zoned heating and coolingapplications, including:• Hotel and motel guest rooms• Hospitals and assisted living facilities• Apartments, college dormitories and military barracks• Offices and other zones in a variety of buildings

Catalog 1350 / Page 5 of 40 (5-04)

The Original ManufacturerMcQuay is the original manufacturer of the Incremental®

system – the pioneer of PTAC/PTHP systems. Since 1955, In-cremental systems have set the industry standard for reliability,excellent occupant comfort and easy installation and mainte-nance. With a design life of 20-plus years, Incremental systemsremain a preferred choice for zoned heating and cooling appli-cations that demand institutional quality.

Suite II Comfort ConditionerThe McQuay Suite II PTAC/PTHP is the ideal four-season

zone heating and cooling solution for new or replacement ap-plications. Features and benefits include:• Industry standard 16" x 42" wall sleeve dimension.• 18-gauge steel front panel with a polycarbonate discharge

grille and side panels enhance any room décor while pro-viding significantly more durability than polycarbonate-onlyfront panels.

• Heavy-gauge sheet metal chassis, bulkhead and drain panconstruction provide superior durability and longer life.

• Four sizes from 7,100 to 13,600 Btuh cooling and electric,hydronic or reverse cycle heat pump heating to match appli-cation requirements.

• UL listed and ARI certified performance with energy effi-ciency ratings (EER) up to 11.6 and coefficients of perfor-mance (COP) up to 3.1 for reliable, energy savingoperation.

• Front desk, fan only and temperature limiting control fea-tures provide added energy saving opportunities.

• Quiet centrifugal fans with one or two (optional) motors anda vibration isolated rotary compressor provide superioracoustic comfort for room occupants.

• Supplemental booster fans provide up to (100 cfm), 25% ofoutside fresh air for improved indoor air quality.

• Installation requires only one person, without special equip-ment, and units retrofit easily into existing wall sleeves(McQuay or competitive models).

Suite™ II – PTAC/PTHP ConditionersFlexibility, style, comfort and energy efficiency . . . one room at a time.

Wall SleeveIndustry standard 16" x 42" wall sleeve ismade of galvanized, phosphatized, heavy-gauge steel. Each sleeve is coated with elec-trostatically applied, baked on, antique ivoryurethane powder paint for maximum corro-sion protection. A temporary weather panel issupplied to seal out the elements duringconstruction.

CompressorThe reliable, high efficiency rotary compressoris hermetically sealed and designed for con-tinuous, quiet operation. The compressor isisolated to minimize vibration and soundtransmission.

Cooling ChassisThe slide-out chassis is specifically designedto simplify maintenance and installation.Constructed of heavy-gauge sheet metal, thechassis houses two quiet-running centrifugalfans and one or two motor(s) to provide supe-rior air circulation and acoustic comfort forroom occupants.

Evaporator & Condenser CoilHigh capacity coils employ the latest in heattransfer technology to provide maximumcomfort to the conditioned space while mini-mizing the energy required to operate theunit.

Room CabinetThis attractive enclosure is a skillful blend of steeland high impact resistant polycarbonate for maxi-mum durability and aesthetic appeal. An 18-guagesteel front panel is combined with a polycarbonateraised discharge grille and grooved side panels togive added dimension that will enhance any roomdecor.

Control ModuleEnergy savings is inherent in the standard controlpanel with a standard front desk interface forconvenient on/off, night setback and holiday set-back control from a central location. Additionalenergy saving features include “fan only” controlthat circulates the air without operating the heatingor cooling functions and temperature limiting thatallows minimum and maximum limits to be preset.

Catalog 1350 / Page 6 of 40 (5-04)

Design FeaturesElectric Cooling, Electric Heating

The electric heat version is designed for completely decen-tralized applications. Both heating and cooling are controlledby the occupant. Because the system is totally electric, eachoccupant can be billed separately for only the amount of powerused.

The electric version uses quick response, low mass type heatelements with high limit cutout. Electric resistance heaters areavailable for 208V, 230V and 265V units, with three sizes nomi-nal rated from 2.5 kW to 5.0 kW. All heaters are individuallysized for the application, factory assembled and installed andtested before shipment to the job site. An electrical subbase isstandard for 265V units and optional for 208V and 230V units.

Electric Cooling, Hydronic HeatingThe McQuay Suite II hydronic heating conditioner was de-

veloped for areas where electric resistance heat is impracticaldue to the high cost of electricity. The hydronic unit can accom-modate either hot water or steam to provide efficient, economi-cal space heating. This hydronic heater is located in a speciallydesigned subbase with a hinged front panel for easy inspectionor service. To comply with UL requirements, a subbase recep-tacle is provided and a fuse and disconnect option is availablewhere required.

Electric Cooling, Reverse Cycle HeatingThe air-to-air heat pump unit utilizes electric cooling and

reverse cycle heating. This unit drastically reduces heating costsversus electric resistance heat or a central boiler system by ex-tracting low grade heat from outside air, amplifying it and trans-ferring it to the internal space. Like the electric version, theheat pump is completely controlled by the occupant.

To maintain maximum comfort and efficiency, McQuay SuiteII heat pump units employ equipment protection features andsensors for optimal performance. The following describes thetwo levels of operation:• Standard Defrost Mode — If the outdoor temperature falls

below 35o the unit employs a passive defrost system. Thissystem will switch from heat pump to electric heat until theoutdoor air temperature reaches 40o and economical heatpump operation can resume.

• Demand Defrost Mode (Heat Pump with Extendaire only)— When the outdoor coil temperature falls below 10o (whichindicates a frosted coil), the unit will go into the defrost cycleto defrost the outdoor coil. Once the outdoor coil is defrosted,the sensor will terminate the defrost cycle so that the heatpump operation can resume. By having this option, the unitcan operate for a longer period of time in the more efficientheat pump heating mode. The demand defrost cycle gener-ates water as the frost is melted off the outdoor coil. A tem-perature activated condensate disposal valve is employed todrain water from the base pan and prevent ice formation.The condensate disposal valve opens when the outdoor tem-perature drops below 59o allowing condensate to drain intothe wall sleeve where it can be carried away by the internalor external condensate drain system.

ChassisMcQuay Suite II comfort conditioners are rigidly con-

structed from heavy-gauge sheet metal. To prevent condensateleakage, the base pan is formed from one continuous piece ofmetal and coated with an electrostatically baked-on epoxy fin-ish. The bulkhead is also constructed of heavy-gauge sheet metalthat is rigidly attached to the base pan and insulated with a wa-terproof insulation to prevent sweating.

Compressor — All Suite II units use rotary compressors whichare selected for their reliability, efficiency and low sound lev-els. The compressors are protected against thermal overload andare hermetically sealed for quiet, continuous operation.

Figure 1. Suite II with Standard Electrical Subbase

Figure 2. Suite II with Hydronic Subbase

Figure 3. Compressor

Catalog 1350 / Page 7 of 40 (5-04)

High Capacity Heat Transfer Surfaces — The finned/tubecoils furnished with the Suite II units incorporate state-of-the-art technology. The unique design of these coils provides highefficiency and low air pressure drops, in addition to allowingfor easy cleaning during scheduled maintenance.

Centrifugal Fans — Quiet running, indoor centrifugal fansevenly circulate air across the evaporator coil and into the oc-cupied space. These fans are constructed of metal and the mo-tor incorporates permanently lubricated bearings to help pro-vide uninterrupted service

Fan Motors — High efficiency, quiet PSC fan motors are uti-lized by Suite II units. All motors employ accessible oil linesfor periodic lubrication during scheduled maintenance. The out-door fan motor is totally enclosed to help prevent damage fromdriving rain or excess condensate accumulation in humid cli-mates.

Rotary Control Module — The rotary control concept em-ploys two rotary knobs for complete unit control. One knobselects the room temperature desired, while the second sets fanspeed and heating/cooling/fan only mode. The control box isfactory overlaid with a tough polycarbonate membrane to pre-serve its appearance. Color coded and raised function indica-tors improve readability for the visually impaired.

Indoor Discharge Grille — The standard grille used forMcQuay Suite II units is made of a high impact resistant poly-carbonate blend. The grilles are sectional, reversible and tamperresistant. Each grille has a 3/4" raised dimension to provideoptimal airflow and serve as a curtain stop to avoid airflow ob-structions.

FiltrationA 1/4" permanent cleanable filter is furnished on Suite II

units to help provide clean, odor free air to the space. A perma-nent filter provides continuous service, well beyond that of athrowaway filter, and they rarely need to be replaced, whichcan reduce operating expenses.

Wall SleeveThe wall sleeve is made of heavy-gauge, zinc-coated,

phosphatized steel. All joints and corners are solidly weldedand caulked to help prevent leaks. The sleeve is then coatedwith an electrostatically-applied and baked-on antique ivoryurethane powder paint for long lasting corrosion protection. Theinside top and sides are then insulated with factory-installed, 3-pound density thermal insulation. This helps protect againstsweating and further reduces the radiated sound levels trans-mitted through the wall sleeve.

Figure 5. Rotary Control Module

Figure 4. High Efficiency PSC Fan Motor

Figure 6. High Impact Resistant Discharge Grille

Figure 7. Permanent, Cleanable Filter Dimensions

73/4"

34"

1/2"

3/16" Max.

Design Features

(For Remote Mounted Thermostats see page 29)

Catalog 1350 / Page 8 of 40 (5-04)

Figure 11. Electric Subbase

Louver FramesInstallation of wall sleeves for panel wall construction re-

quires special consideration. Louver frames are offered thatmechanically attach the wall sleeve to the wall (see pages 12and 14 for details on Louver Frames).

Room CabinetThe room cabinet has a 22o angle sloped top and is a wrap-

around design. The side panels and raised discharge grille aremade of a highly impact-resistant polycarbonate blend. Theseare securely attached to an 18-gauge steel front panel with aneutral Antique Ivory finish to match any room décor. The frontpanel is insulated with 2-pound density insulation to preventsweating and reduce sound transmission to the occupied space.

SubbaseAn electric subbase is available for each Suite II unit. The

subbase height can be either 3" or 4". The subbase for the SuiteII series hydronic heat model is 8" high with a front air intakegrille. Leveling legs are supplied with each subbase that allowfor an additional 1" adjustment. The standard subbase requiresa minimum of 4-3 /8" from the front edge of the wall sleeve tothe finished wall. The Suite II hydronic model requires 1" mini-mum. Side channels are furnished with all subbases for a maxi-mum depth extension of 13-3/4" (See page 12 for details onelectric subbase, page 14 for hydronic subbase). Subbases areavailable with or without recepticals or fuse disconnect switches.

Figure 10. Room Cabinet with 22o Angle Sloped Top

The wall sleeve is a standard size of 16" high, 42" wide and13-3/4" deep that accepts all Suite II chassis. Slide channels arefactory welded into the sleeve to facilitate easy installation andremoval of the chassis. Each wall sleeve is predrilled to matchthe mounting screws of the chassis. Knockouts are provided forthe optional external drain kit used with the heat pump models.All necessary fasteners are supplied to assemble the chassis andlouver to the wall sleeve.

When roughing in the opening for the wall sleeve, makecertain there is sufficient clearance from the walls and floor.The wall sleeve should be positioned a minimum of 5/8" fromthe finished side wall to accommodate the room cabinet. A mini-mum distance of 3" above the finished floor is required for re-turn air.

Separate Ship Wall Sleeve — The unique design of the SuiteII unit allows for separate shipment of the wall sleeve. This isdesirable to help prevent damage to the chassis during construc-tion. When the wall sleeve is shipped separate from the chassis,a waxed weather panel is supplied to keep out the elementsuntil the chassis is installed.

A separate shipment procedure also allows the owner toforego chassis installation until the space becomes occupied.Initial capital outlay is kept to a minimum or applied to otherareas of the job.

Drain KitsInternal and external drain kits are available to be field in-

stalled in the wall sleeve. External drain kits are installed at therear of the wall sleeve. Internal drain kits are installed on theroom side to allow connection to an internal collection system(see page 11 for details on Drain Kits).

Figure 9. Drain Kits

InternalExternal

Design Features

Factory Supplied Holes (2)

Tinnerman Clips

Chassis

Damper Actuator

Wall Sleeve Rails

Wall Sleeve

Figure 8. Easy Chassis Installation

Catalog 1350 / Page 9 of 40 (5-04)

Free area is defined by ASHRAE as the minimum area ofthe openings in an air inlet or outlet through which air can pass.Refer application of special louvers or building facade treat-ments that may affect normal operation of the unit or restrictfree air discharge of condenser airflow, to your local McQuayrepresentative for factory evaluation. A louver design that re-stricts the passage of condenser air or causes condenser air tobe recirculated will dramatically alter the performance of theunit. Unit capacity and efficiency may be decreased and fanmotor and compressor life may be shortened.

If the louver does not meet the above outlined requirementsor it is only marginally acceptable, then a drawing will be re-quired for factory evaluation. If acceptance cannot be deter-mined by the drawing, then a sample of the proposed louvermust be sent to the factory for testing and certification. Thesample sent for testing must be at least 16" high by 42" wide.

Typical Louver DesignThe illustrations below show some typical louver designs.The “X ” dimension represents the narrowest dimension

through which air must pass. The “Y ” dimension representsthe increment of rise between the blades. To calculate the per-centage of free area, divide dimension “X ” by dimension “Y ”.

Figure 15. Louver Designs

Figure 12. Hydronic Subbase

Design Features

Outdoor LouversTwo styles of exterior louvers are available for Suite II units.

The standard louver is a one-piece stamped aluminum type thatis finished natural. This louver is shown in Figure 13. Attrac-tive, rugged architectural louvers (Figure 14) are extruded alu-minum and are finished natural.

Louvers by others are acceptable as long as they meet fac-tory specifications. They must have a minimum free area of70% or a pressure drop not exceeding .05 in. w.g. at 300 fpmface velocity, and a blade design that will not cause recircula-tion of condenser air.

Figure 13. Standard Stamped Louver

Figure 14. Architectural Louver

Sample Calculation:

XFree Area % = x 100 Y

Where X = 1.125Y = 1.50

1.125Free Area % = x 100 = 75%1.50

Catalog 1350 / Page 10 of 40 (5-04)

Application ConsiderationsUnit Selection

Suite II Packaged Terminal products are designed and builtfor through-the-wall installation in either new or existing build-ings. Its self-contained refrigerant system delivers cooling tothe desired space. Heating is accomplished with electric resis-tance heat or reverse cycle technology (heat pump models only).Ventilation flow rates are listed in the Performance Data pages.This airflow can be provided with either the standard manualair damper on the electric heat units or the standard automaticair damper on the hydronic units. This outside air is intendedfor local ventilation and /or dilution air. The performance of theelectric heat elements is based on 3.41 btu per watt and as theentering air temperature goes down, so will the discharge airtemperature of the unit. As a prerequisite to leaving the outsideair damper fully open in cold weather, which will result in tem-perature variances across the unit discharge, perform air qual-ity tests to assure that over-ventilation is not occurring. Thisfeature is not meant to replace make-up air units or to balanceairflow requirements necessitated by building exhaust systems,etc.

Final selection should be made by an architect or engineerusing McQuay’s user-friendly SelectTOOLS™ Software forPackaged Terminal Air Conditioners and Heat Pump products.

Wall Opening RequirementsThe rough opening should measure 16-1/4" high x 42-1/4"

wide. When using a louver frame, the opening should measure16-5/8" x 42-5/8". The wall opening should be clear of obstruc-tions to allow the unit to slide into it. When a subbase is used,the opening must start 3" to 4" above the finished floor (includ-ing carpeting) to match the height of the subbase selected. Thesubbase is available in 3" or 4" heights and has adjustable lev-eling legs that provide up to an additional 1" height. A 3" or 4"subbase is required for 265V models and is optional for 208/230V models.

Power Supply WiringAll wiring must be done in accordance with all local and

National Electrical Code requirements. Time delay fuses orHACR circuit breakers are required. The chassis has a univer-sal electric heater, so the kW is determined by the field-installedpower cord. Figure 38, page 17 shows the electrical receptaclesfor each power cord.

An electrical subbase is available and contains a junctionbox for a field-mounted receptacle. All electrical connectionsare made within the subbase, thereby eliminating the need for aseparate receptacle.

Remote Wall ThermostatThe Suite II series Packaged Terminal conditioners can be

supplied to accept a remote mounted thermostat. When re-quested, all necessary relays and transformers are factorymounted and ready for attachment to field supplied low voltagewires. A choice of manual or automatic changeover thermo-stats is available. Programmable thermostats are also accept-able and can be factory supplied when required. (see page 29for Wall Thermostat Details).

Condensate Drain KitHeat pump models will generate condensate during the heat-

ing season. If left uncontrolled, the condensate can run downthe side of the building and leave stains. Therefore, the optionaldrain kit should be used with each heat pump unit. Condensatedrain kits can be installed internally or externally. Indoor drainkits must be installed before placing the wall sleeve into theopening. External drain kits should be installed after the wallsleeve has been installed (see page 11 for Drain Kit Details).

Wall SleeveSplittersWall Sleeve Extension

Lintels (By Others)

Typical Wall Construction Types

Figure 16. Panel Wall (Thin) Construction

Figure 18. Masonry Wall (Thick) Construction

Figure 17. Frame & Brick Construction

FloorUnit Rough Opening

Steel Studs

ConcretePillars

Room Side

Catalog 1350 / Page 11 of 40 (5-04)

Wall Sleeve InstallationFigures 23, 26, 27-29 & 31-33 show installations for thin

and panel wall construction, frame and brick construction, andthick wall construction. For all wall constructions, the center ofgravity (10-1/4" from the outside edge of the wall sleeve) mustbe within the load bearing surface or other support must be em-ployed. Support can be provided by the floor (with 208/ 230Vunits), a factory-supplied subbase or from other field suppliedmaterials. Louver frames are recommended for thin wall andpanel wall applications for positive anchoring to the wall. Forthicker walls, wall sleeve extensions are available from yourlocal McQuay Representative. Air splitters are included in wallsleeve extensions.

Figure 19. Attaching the Wall Sleeve

Application Considerations

Contractor To Drill Three (3)Holes To Accept Drain Kit

SquareDrain Holes

Neoprene Sponge Gasket

Steel Mounting Plate

See Detail

Figure 20. Internal Drain Kit

Square Drain Holes

Neoprene Sponge Gasket

Steel Mounting Plate

Figure 22. External Drain Kit

Drain KitsDrain kits are recommended for the heat pump units, and

may be used on any unit as required. They eliminate excessivecondensate accumulation which is generated during the heat-ing cycle of the heat pump.

There are two types of drain kits employed with the Incre-mental equipment; internal drains and external drains.

Internal DrainAn internal drain is mounted to the bottom of the wall sleeve

prior to installation of the sleeve. Position this drain on the roomside of the sleeve and connect to an internal collection system.When using a subbase, a 3" x 5" opening is provided in thesubbase for plumbing to the drain.

External DrainThe external drain is attached to the rear of the wall sleeve,

over one of the weep holes. A cap is provided to seal the remain-ing weep hole to force the excessive condensate to one side.The excess condensate is then evacuated from the wall sleeveand allowed to drain to the outside of the building. Scheduledmaintenance should include periodic checking of drain holes toprevent blockage that could restrict proper drainage.

Room Side

Cover PlateTube

Gasket

Screws

Cover Plate

1/2" (13mm) O.D.

Cabinet Bottom

Room Side

1/2" (13mm) O.D. Drain Tube

Alternate 6" Long,1/2" O.D. StraightCopper Tube

Note: Use of 6" straight drain tube will require modification ofarchitectural louver.

Figure 21. Internal Drain Kit Detail

Wood Screw

Molly orToggle Bolt

ExpansionAnchor Bolt

Do Not Drill Holes inBottom of Sleeve(Except for Internal Drain Kit)

Cripple Stud

Main Stud

CAUTION!Improper drainage can damage floors and walls. Drains must beproperly installed and maintained.

Catalog 1350 / Page 12 of 40 (5-04)


Figure 23. Panel Wall with Standard Electric Subbase &Louver Frame

Caulk PerimeterBoth Indoors &Outdoors

17" 81/4" 133/4"

Subbase SideExtension Piece

Outdoor Louver

Conduit

Louver Frame

ElectricalSubbase

Wall Sleeve

RoomCabinet

See Note

16"

Typical Panel Wall Installation Using ElectricSubbase

Suite II series equipment in thin walls requires special at-tention. Provide proper support of the unit portion extendinginto the room. The center of gravity for the Suite series unit isapproximately 10-1/2" from the rear of the unit. Materials usedto support the unit should be wood, concrete or metal whichprovide for an even distribution of the unit weight. Use a sub-base with all panel wall installations to provide this support.

Louver Frames – are designed to trim the exterior of an over-sized wall opening. Louver frames are most often used withretrofit projects requiring a hole to be cut into an existing solidwall.

Louver frames can also be used to provide positive mount-ing of the wall sleeve to the wall as illustrated in Figures 23, 26,& 29.

Figure 25. Electric Subbase Detail

ElectricalJunctionBox for MainPower Connection

Receptacle (Req’don 265V Units)

Plug/Cord Cover(Req’d on 265VUnits)

Knockouts forOpitonal Fuse &

Disconnect Switch

Electrical Knockouts

3"or 4"

0" to 1"

411⁄2"

Leveling Screw (4 Places)

17" 12"5"21⁄2"

0" to 93⁄8"

43⁄8"

11⁄2"

7⁄8"

5⁄8"

3"

Plan

Front Elevation (Three Front Panels in Place)

3" x 5"(76 to 127mm)Opening forElectrical and/orDrain Rough-In

Figure 24. Louver Frame

Figure 26. Panel Wall with No Subbase & Louver Frame(208/230V Only)


17" 81/4" 133/4"

Min. 2 SupportsField Supplied

Outdoor Louver

Conduit

Louver Frame

Wall Sleeve

RoomCabinet

16"

3" Min.

Receptacle(by Others)

Notes:1. Subbase optional for 208/230V units. Subbase is standard for all 265V

electric heat and heat pump units.2. Electric wiring may enter the subbase through any of the knockout holes

provided in the subbase.3. Internal condensate drain piping can enter the subbase through the 3" x

5" opening provided.

183⁄16"(1072mm)

423 ⁄ 16"

(1072mm)

443 ⁄ 16"

(1122mm)

33⁄4"(92mm)

163⁄16"(411mm)

Note: Standard subbase is available 3" or 4" height. Leveling legs provideadditional adjustment of up to 1" height.

Catalog 1350 / Page 13 of 40 (5-04)

Figure 27. Frame & Brick with Standard Electric Subbase


17" 81/4"

133/4"

FinishedFloor or Topof Carpet

Outdoor Louver

Conduit

Leveling Leg(1" Adj.)

Subbase

Wall Sleeve

RoomCabinet

See Note

16"

43/8"Min.

MountingScrews byInstaller

Steel Lintel (by Others)

Typical Frame and Brick Installation UsingElectric Subbase

Foresight and planning are essential for proper installationof the Suite II series equipment. The unit must be located atleast 3" above the finished floor for adequate return airflow. (Besure to compensate for future installation of carpet.) The unitsshould be installed as near to the center of the room as possible.Make sure air discharge will not be hindered by draperies, book-shelves or the like. Locate the units to allow future chassis re-moval or filter removal for cleaning and scheduled maintenance.

The cabinet/wall sleeve should be leveled in all directions,place on a pad of soft mortar, and firmly secure to the wall withappropriate fasteners. Provide proper shims for the cabinet/wallsleeve to prevent distortion during anchoring. Two holes are fac-tory provided in the cabinet/wall sleeve, but other holes may berequired for rigidity.


Figure 28. Frame & Brick with No Subbase (208/230V Only)


17" 81/4"

133/4"

Finished Floor orTop of Carpet

Outdoor Louver

Wall Receptacle(by Others)

Wall SleeveRoomCabinet 16"

3" Min.



Install the outdoor louver flush with the finished exterior ofthe building. The distance the cabinet/wall sleeve extends intothe wall is determined by the type of louver design employed.

NOTE: Center of gravity (10-1/2" in from louver) mut be within the loadbearing surface of the wall.

NOTE: Standard subbase is available in 3" or 4" height. Leveling legsprovide adjustment of 1".

Catalog 1350 / Page 14 of 40 (5-04)

Figure 29. Panel Wall with Hydronic Subbase and LouverFrame


17" 81/4" 133/4"

Outdoor Louver

Power Supply Conduit(Alternate Entry)

Leveling Legs Provide up to 1" Additional Height Adjustment

SubbaseSideChannel

Wall Sleeve

RoomCabinet

16"HydronicHeating

Coil

81/4" HydronicSubbase

Louver Frame

Application ConsiderationsTypical Panel Wall (Thin Wall) Installation UsingHydronic Subbase

Suite II series equipment in thin walls requires special at-tention. Provide proper support of the unit portion extendinginto the room. The center of gravity for the Suite series unit isapproximately 10-1/2" from the rear of the unit. Materials usedto support the unit should be wood, concrete or metal whichprovide for an even distribution of the unit weight. Use a sub-base with all panel wall installations to provide this support.


17" 81/4"

133/4"

Outdoor Louver

Power Supply Conduit(Alternate Entry)

SubbaseSideChannel

Wall SleeveRoomCabinet

16"HydronicHeating

Coil

81/4" HydronicSubbase

Finished Floor orTop of Carpet

Leveling Leg(1" Adj.)

1"Min.


Figure 31. Frame & Brick with Hydronic Subbase


Figure 30. Hydronic Subbase Detail

21/2"

81/4"

21/2"

11/2"

1/4" – 11/4"

8"31/4"

51/2"

71/2"63/4"

71/4"

3/4"

411/2"

3/4"

15" Fuse

Receptacle (Factory installedwhen fuse & disconnect arefurnished)

5/8" O.D. Copper Sweat

As Req'd

3" x 5" Opening for Electricaland/or Piping Rough-in

Optional FuseDisconnect

PermanentMesh Filter

ElectricalKnockout

NOTES:1. Side channels are adjustable from 0"–93/8" in

length by inverting them. Side channels arepredrilled to allow infinite adjustment.

2. Subbase shown with louvered front panelremoved. Front panel is hinged to allowaccess to valve, coil, filter & electricaljunction box.

3. Leveling legs are adjustable from 1/4"–11/4".Top View

Front ViewEnd View

Leveling Legs

Catalog 1350 / Page 15 of 40 (5-04)

For thick wall construction, install the cabinet/wall sleeveduring construction. When installing the cabinet/wall sleeve intoa thick masonry wall, a lintel(s) must be used. The cabinet/wallsleeve is NOT designed to replace the lintel(s).

The cabinet/wall sleeve should be leveled in all directionsand firmly secured to the wall with appropriate fasteners. Pro-vide proper shims for the cabinet/wall sleeve to preventdistortion during anchoring. Two holes are factory provided inthe cabinet/wall sleeve, but other holes may be required to in-sure rigidity.


17" 81/4"

133/4"

Outdoor Louver

Wall Sleeve

RoomCabinet

16"

HydronicHeating

Coil

81/4" (See Note 1)

Electrical Subbase


Figure 32. Masonry Wall with Electric Subbase

Steel Lintel(s) (by Others)

Wall SleeveExtension

43/8"Min.

Note:1. Electric subbase is available in 3" or 4" height. Leveling legs provided for

adjustment of up to an additional 1" height.2. Wall sleeve extension is available in various depths and supplied as required.

Application ConsiderationsTypical Masonry (Thick Wall) Installation UsingElectric Subbase


17" 81/4"

133/4"

Outdoor Louver

Wall Sleeve

RoomCabinet

16"

81/4"(See Note 1)

Hydronic Subbase


Figure 33. Masonry Wall with Hydronic Subbase

Steel Lintel(s)(by Others)

Wall SleeveExtension

1" Min.

Note:1. Hydronic subbase has leveling legs provided for adjustment of additional 1"

height.

See Table 1

See Table 1

Figure 34. Wall Sleeve Extension

Thick wall construction may require the use of a wall sleeveextension. These extensions are designed to match exactly thedimensions and mounting configurations of the wall sleeve.When wall sleeve extensions are field fabricated, care must betaken to include air splitters that prevent recirculation of con-denser air. Wall sleeve extensions must be made from noncor-rosive materials or be treated, to insure maximum corrosionresistance.

Table 1. Maximum Wall Thickness WITHOUT SleeveExtensions

Louver Type

Maximum Wall Thickness (Inches)

NoSubbase

StandardSubbase

HydronicSubbase

Stamped

Architectural

14

147/8

91/2

10 3/8

131/8

14

Dimension Slope top Flat top

A

B

C

155/8

193/4

65/8

131/8

211/2

73/8

A

B

C

X

16"

42"WallSleeveExtension

AirSplitter

Table 2. Wall Sleeve ExtensionSplitter Location Dimensions

Room Side

AsReq.'d

X = As Required

Catalog 1350 / Page 16 of 40 (5-04)

Before attempting any electrical connections, consult thelocal electrical codes and the National Electrical Code for com-pliance. Maximum electrical requirements and load restrictions,including electric heater and motor power requirements, areshown in the product Performance and Electrical Data sched-ule on page 17 & 18.

Two methods are recommended for connection of the Incre-mental conditioner to the power supply: cord connected or per-manently connected using a subbase.

Cord Connected UnitsWhen units require cord connection, they are furnished with

a 6-foot cord and a plug selected for the proper amperage rat-ing. Field wiring of the receptacle for this type ofconnection is illustrated in Figure 35. Consult Performance &Electrical Data Table on page 17 & 18 for correct receptacleselection. Cord connected units are available for 208/230 voltmodels with electric heat or heat pump only.

Permanently Connected UnitsFor all 265V units and all hydronic heat units, Underwriters

Laboratory (UL) requires permanent connection to the powersupply. A short cord is supplied to meet this requirement. Thecord extends from beneath the control module and is just longenough to plug into the subbase receptacle. A plug/cord coveris supplied for all 265V units to discourage unauthorized tam-pering. See Figure 40 for field wiring to the receptacle.

SubbaseA subbase is available for all unit sizes and types. It can be

used for electrical connection, unit support or aesthetic purposes.The subbase is furnished with adjustable side channels to fitany wall thickness.

There are two types of subbases available for use with In-cremental conditioners: standard electric subbase and hydronicheat subbase.

Nem

a No. 6-30R

Application Considerations – ElectricalElectric Subbase

An electric subbase can be used with any electric heat orheat pump unit with either 208/230V or 265V requirement. Elec-trical knockouts are furnished and shown in Figure 25 on page12 of this manual. Optional fuses and disconnects are availableon most unit/heater combinations and are factory installed. Whenfuse and disconnect are furnished, all electrical connections arebrought out to a conveniently located junction box for quickconnection to the power supply. The fuses employed are timedelay type.

Hydronic SubbaseA hydronic subbase heat model is available for 208/230V or

265V power requirements. This subbase houses a two-row coilthat can be used with either hot water or steam heat. Ampleroom is provided to allow installation of the valve with supplyand return piping. Electrical knockouts are furnished as shownin Figure 30 on page 14 of this manual. Optional fuse and discon-nects are available and are factory installed in the electrical sub-base. The electrical connections are brought out to a conve-niently located junction box for quick connection to the powersupply. The fuse(s) employed are time delay type.

72"

Front View

72"

38"

Figure 35. Field Wiring to Receptacle

Figure 36. Maximum Cord Length (208/230V Heat Pumpor Electric Heat Only)

Figure 37. Field Wiring to Receptacle

208/230VField Wiring

15Amp


20Amp


30Amp

Nem

a No. 6-15R

Nem

a No. 6-20R

Black

WhiteGrounded

265VField Wiring

30Amp

EquipmentGroundSupplied withReceptacleHex Head Screw & Lock Washers (2-Places)

Improper wiring can cause property damage, severe personal injuryor death. Electrical connections must be made by licensedprofessionals in accordance with applicable codes.

WARNING!

Catalog 1350 / Page 17 of 40 (5-04)

� Based on ASHRAE and ARI test conditions of 95oF DB/75oF WB outside, 80oF DB/67oF WB inside.� Based on ASHRAE and ARI test conditions of 47oF DB outside, 70oF DB inside.� Electric Resistance Heat Watts x 3.41 = Btuh.� Electric Heating Watts and Amps includes indoor Fan Motor. Heater size is determined by the power cord selection.

Water – Based on ASHRAE and ARI test conditions of 200oF EWT, 180oF LWT, 70oF EAT.Steam – Based on ASHRAE and ARI test conditions of 2 psig, 70oF EAT.

� 100 cfm with PDEI, PDHI, with Power Vent option.

13⁄8" dia. 13⁄8" dia. 21⁄8" dia. 13⁄8" dia.230V / 208V 230V / 208V 230V / 208V 265V

Use 15 AMP Circuit. Use 20 AMP Circuit. Use 30 AMP Circuit. Use 20 AMP Circuit.Refer to nameplate Refer to nameplate Refer to nameplate Refer to nameplatefor correct fusing. for correct fusing. for correct fusing for correct fusing.

UNIT SIZE 07 09 12 15

4

ARI Performance Data – Dual Motor (PDEx - PDHx)

Figure 38. Electrical Receptacles

Table 3. Unit Data

Btuh ➀ 7,100 7,200 7,100 9,000 9,100 9,000 11,700 11,700 11,700 13,500 13,600 13,600EER 10.1 10.1 10.1 9.8 9.8 9.8 9.8 9.8 9.8 8.9 8.9 8.9Volts 208V 240V 277V 208V 240V 277V 208V 240V 277V 208V 240V 277VCoolingFull Load Amps 4.4 4.0 3.5 5.5 5.0 4.4 6.6 6.0 5.2 8.4 7.6 6.4Watts ➀ 703 713 703 918 929 918 1204 1204 1204 1517 1528 1528Volts 208V 240V 277V 208V 240V 277V 208V 240V 277V 208V 240V 277V

Watts 1803 2400 2400 1803 2400 2400 1803 2400 2400 1803 2400 24002.0 Kw

Amps 9.3 10.6 9.2 9.3 10.6 9.2 9.1 10.4 9.1 9.1 10.4 9.1

Electric Heat ➂ Watts 2478 3300 3300 2478 3300 3300 2478 3300 3300 2478 3300 33003.0 Kw

Amps 12.5 14.4 12.4 12.5 14.4 12.4 12.3 14.2 12.3 12.3 14.2 12.3

5.0 Kw Watts - - - - - - 3605 4800 4800 3605 4800 4800 Amps - - - - - - 17.7 20.4 17.7 17.7 20.4 17.7

Valve & Fan Motor Amps .6 .6 .5 .6 .6 .5 .4 .4 .4 .4 .4 .4Hydronic Heat Hot Water (Btuh) Hi/Lo 16,300/13,800 16,300/13,800 18,400/15,600 18,400/15,600

Steam (Btuh) Hi/Lo 20,100/19,800 20,100/19,800 22,400/22,300 22,400/22,300Heat Pump Model

Btuh ➀ 6900 7100 6900 8600 8800 8600 11700 11700 11700 13500 13500 13500EER 9.9 9.8 9.9 9.5 9.6 9.5 9.5 9.5 9.5 8.9 8.8 8.8

Cooling Volts 208V 240V 277V 208V 240V 277V 208V 240V 277V 208V 240V 277VFull Load Amps 4.4 4.0 3.5 5.5 5.0 4.4 6.6 6.0 5.2 8.4 7.6 6.4Watts ➀ 616 639 616 835 863 835 1105 1137 1105 1421 1432 1421Btuh ➁ 6500 6600 6500 8200 8500 8200 10400 10600 10400 12000 12000 12000

Reverse COP 2.9 2.9 2.9 2.7 2.7 2.7 3.0 3.0 3.0 2.7 2.7 2.7Cycle Volts 208V 240V 277V 208V 240V 277V 208V 240V 277V 208V 240V 277VHeat Full Load Amps 4.4 4.0 3.5 5.5 5.0 4.4 6.6 6.0 5.2 8.4 7.6 6.4

Watts ➁ 657 667 657 890 922 890 1016 1035 1016 1302 1302 1302Universal Heater Voltage 208V 240V 277V 208V 240V 277V 208V 240V 277V 208V 240V 277V

Minimum2.4 @ 240V 11.6 13.2 11.4 11.6 13.2 11.4 11.3 13.1 11.4 11.3 13.1 11.4

Circuit 3.3 @ 240V 15.6 18 15 15.6 18 15 15.4 17.8 15 15.4 17.8 15

Ampacity 4.8 @ 240V - - - - - - 22.1 25.6 22.2 22.1 25.6 22.2Hydronic Heat 4.7 4.7 4.1 4.7 4.7 4.1 7.2 7.2 6.3 9.2 9.2 7.8

Time Delay Fuses2.4 @ 240V 15 15 15 15 15 15 15 15 15 15 15 15

or Type HACR3.3 @ 240V 20 20 15 20 20 15 20 20 15 20 20 15

Circuit Breaker4.8 @ 240V – – – – – – 25 30 25 25 30 25Hydronic Heat 15 15 15 15 15 15 15 15 15 15 15 15

NEMA2.4 @ 240V 6-15R 6-15R 7-20R 6-15R 6-15R 7-20R 6-15R 6-15R 7-20R 6-15R 6-15R 7-20R

Receptacle3.3 @ 240V 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R

Type Required4.8 @ 240V - - - - - - 6-30R 6-30R 7-20R 6-30R 6-30R 7-20RHydronic Heat 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R

High Low High Low High Low High LowAirflow Cool 267 198 238 164 330 280 330 280

CFM Heat 280 208 250 170 345 295 345 295Vent � 60 40 60 40 70 50 70 50

Catalog 1350 / Page 18 of 40 (5-04)

Btuh ➀ 7,100 7,200 7,100 9,000 9,100 9,000 11,700 11,700 11,700 13,500 13,600 13,600EER 11.5 11.4 11.6 10.4 10.2 10.4 10.8 10.5 10.8 9.5 9.5 9.5Volts 208V 230V 265V 208V 230V 265V 208V 230V 265V 208V 230V 265VCoolingFull Load Amps 3.6 3.6 3.0 5.3 5.3 3.9 5.7 5.7 5.0 7.9 7.9 6.1Watts 612 632 612 865 892 865 1083 1114 1083 1421 1232 1427Volts 208V 230V 265V 208V 230V 265V 208V 230V 265V 208V 230V 265V

Watts 2045 2500 2500 2045 2500 2500 2045 2500 – 2045 2500 25002.0 Kw

Amps 10.6 11.7 10.0 10.6 11.7 10.0 10.6 11.7 – 10.6 11.7 10.0

Electric Heat ➂ Watts 2862 3500 3500 2862 3500 3500 2862 3500 3500 2862 3500 35003.0 Kw

Amps 14.6 16.0 13.8 14.8 16.0 13.8 14.6 16.0 13.8 14.6 16.0 13.8

5.0 Kw Watts - - - - - - 4171 5100 5100 4171 5100 5100 Amps - - - - - - 20.9 23.0 19.8 20.9 23.0 19.8

Valve & Fan Motor Amps .80 .80 .60 .80 .80 .60 .80 .80 .60 .80 .80 .60Hydronic Heat Hot Water (Btuh) Hi/Lo 16,300/13,800 16,300/13,800 18,400/15,600 18,400/15,600

Steam (Btuh) Hi/Lo 20,100/19,800 20,100/19,800 22,400/22,300 22,400/22,300Heat Pump Model

Btuh ➀ 6900 7100 6900 8600 8800 8600 11600 11600 11600 13500 13500 13500EER 11.2 11.1 11.2 10.3 10.2 10.3 10.5 10.2 10.5 9.4 9.4 9.4

Cooling Volts 208V 230V 265V 208V 230V 265V 208V 230V 265V 208V 230V 265VFull Load Amps 3.6 3.6 3.0 5.3 5.3 3.9 5.7 5.7 5.0 7.9 7.9 6.1Watts 616 639 616 835 863 835 1105 1137 1105 1421 1432 1421Btuh ➁ 6500 6600 6500 8200 8500 8200 10400 10600 10400 12000 12000 12000

Reverse COP 3.1 3.0 3.1 3.0 3.0 3.0 3.1 3.1 3.1 2.7 2.7 2.7Cycle Volts 208V 230V 265V 208V 230V 265V 208V 230V 265V 208V 230V 265VHeat Full Load Amps 3.6 3.6 3.0 5.3 5.3 3.9 5.7 5.7 5.0 7.9 7.9 6.1

Watts 614 645 614 801 830 801 983 1002 983 1302 1313 1302

Minimum 2.5 @ 230V 13.3 14.6 12.5 13.3 14.6 12.5 13.3 14.6 – 13.3 14.6 12.5

Circuit 3.5 @ 230V 18.2 20.0 17.3 18.2 20.0 17.3 18.2 20.0 17.3 18.2 20.0 17.3

Ampacity 5.1 @ 230V - - - - - - 26.1 28.7 24.8 26.1 28.7 24.8Hydronic Heat 4.3 4.3 3.6 6.4 6.4 4.8 7.0 7.0 6.0 9.6 9.6 7.5

Time Delay Fuses2.5 @ 230V 15 15 15 15 15 15 15 15 – 15 15 15

or Type HACR3.5 @ 230V 20 20 20 20 20 20 20 20 20 20 20 20

Circuit Breaker5.1 @ 230V – – – – – – 25 30 25 25 30 25Hydronic Heat 15 15 15 15 15 15 15 15 15 15 15 15

NEMA2.5 @ 230V 6-15R 6-15R 7-20R 6-15R 6-15R 7-20R 6-15R 6-15R 7-20R 6-15R 6-15R 7-20R

Receptacle3.5 @ 230V 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R

Type Required5.1 @ 230V - - - - - - 6-30R 6-30R - 6-30R 6-30R -Hydronic Heat 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R 6-20R 6-20R 7-20R

High Low High Low High Low High LowAirflow Cool 250 210 250 210 300 270 300 270

CFM Heat 260 220 260 220 310 280 310 280Vent � 35 30 35 30 50 40 50 40

UNIT SIZE 07➄ 09 12 15

4

ARI Performance Data – Single Motor (PSEx - PSHx)Table 4. Unit Data

� Based on ASHRAE and ARI test conditions of 95oF DB/75oF WB outside, 80oF DB/67oF WB inside.� Based on ASHRAE and ARI test conditions of 47oF DB outside, 70oF DB inside.� Electric Resistance Heat Watts x 3.41 = Btuh. Electric Heating Watts and Amps includes Fan Motor.� Water – Based on ASHRAE and ARI test conditions of 200oF EWT, 180oF LWT, 70oF EAT.

Steam – Based on ASHRAE and ARI test conditions of 2 psig, 70oF EAT.� Performance Data Based on Low Fan Speed.� 100 cfm with PDEI, PDHI, with Power Vent option.

Figure 40. Hydronic Heat Model Unit Dimensions

43" (1092 mm)

42" (1067 mm)

133⁄4"(349 mm)Top View

22"(559 mm)

3⁄8"-11⁄4" (10-32 mm)

Front View

81⁄4"(210 mm)

As req'd

SideView

16" (406 mm)

8"(203 mm)

Shown with louvered front panel removed

161⁄2"(419 mm)

Figure 39. Electric Heat and Heat Pump Model Unit Dimensions

43" (1092 mm)

42" (1067 mm)

133⁄4"(349 mm)Top View

411⁄2" (1054 mm)

161⁄2"(419 mm)Front View

3⁄4"(19 mm)

3" or 4" (76 or 102 mm)22" (559 mm)

81⁄4"(210 mm)

As req'd

SideView

16" (406 mm)

Catalog 1350 / Page 19 of 40 (5-04)

Cooling Capacities At Nonstandard Conditions.To find total capacity at nonstandard conditions, enter out-door air dry bulb and the indoor wet bulb temperature. Read tothe left for the percent of rated capacity. NOTE: 95oF DB and67oF WB are 100% (Figure 41).To find the sensible heat ratio, enter the indoor dry bulb and thewet bulb temperature on the correct graph for the size of the unit(Figure 42). Read to the left or right for the sensible heat ratio. NOTE:The latent or moisture removal capacity is the total capacity less thesensible capacity.EXAMPLE: A size 9 unit at 80oF DB/67oF WB has a sensible heatratio of 0.69. With a total capacity of 8800 Btuh, the sensiblecooling will be 8800 times 0.69 or 6070 Btuh. The latent coolingcapacity will be 8800 minus 6070 or 2730 Btuh.

Figure 43. Input Power Requirement

Figure 41. Cooling Capacity Graphs.

To find the input power requirement at nonstandard con-ditions, use Figure 43. Locate the appropriate temperature andfollow to the intersection of the curve. Read to the left to deter-mine the percent of rated power. Multiply this percentage by thestandard ratings shown on page 17 & 18 of this manual.

Example: If the outdoor air temperature is 85oF DB, the inputwatts are only 92% of the rated watts. A size 09 unit operating at85oF outside air would have a power requirement of .92 x 1000or 920 watts.

Capacities at Nonstandard Conditions

Figure 42. Cooling Capacity Graphs.

Catalog 1350 / Page 20 of 40 (5-04)

Heating Capacities at Nonstandard ConditionsThe hydronic coil can be used with either hot water or steam.

To determine the correction factor at nonstandard conditionsusing hot water, use Figure 44. Follow the known flow rate tothe corresponding EWT curve and read to the left to determinethe heating correction factor. Apply this percentage to the stan-dard ratings shown on page 17 & 18 (ARI Performance Data).

Figure 44. Hot Water Heating Correction Factor Curve

For conditions at temperatures other than 65oF, determinethe correction factor using Figure 46. From a known enteringair temperature, follow up to the line and then go left todetermine the correct percentage. Apply this percentage toFigure 46 (when using hot water) before plotting the heatingcorrection factor.

Figure 46. Heating Capacity Correction Factor Curve

To determine the water pressure drop (WPD) at nonstandardflow rates, enter known GPM on Figure 47. Follow to condi-tioner line and read left for appropriate WPD. To find the WPDof the valve, repeat procedure. Add the WPD of the valve andthe WPD of the conditioner to get the total.

Figure 47. Water Pressure Drop CurveFor ratings at nonstandard conditions using steam, refer toFigure 45. Follow the known steam pressure to the curvecorresponding to the known entering air temperature. Read downto determine the correction factor. Multiply this number by thestandard rating found on page 17 & 18 (ARI Performance Data),to determine the rating at nonstandard conditions.

Figure 45. Steam Heating Correction Factors

Btu Conversion FactorFor Steam

Rating Point2 psig — 65°F Entering Air

To use curve:1. From known steam

pressure and known airtemperature, determineconversion factor.

2. Multiply published Btuhrating by conversionfactor.

Catalog 1350 / Page 21 of 40 (5-04)

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Catalog 1350 / Page 23 of 40 (5-04)

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Catalog 1350 / Page 24 of 40 (5-04)

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Catalog 1350 / Page 25 of 40 (5-04)

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Catalog 1350 / Page 27 of 40 (5-04)

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Catalog 1350 / Page 28 of 40 (5-04)

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Catalog 1350 / Page 29 of 40 (5-04)

Figure 50. Programmable Micro-electronic Manual &Automatic Changeover Thermostat

Non-programmable Electronic Manual &Automatic Changeover

This thermostat can be wired for either one-stage or two-stage unit operation, and is complete and ready for installation.Liquid Crystal display (LCD) is backlit and easy to read. Se-lectable F or C temperature display, automatic or manualchangeover as well. Setpoints are permanently held in memory(no batteries used) and retained during power outages. Displayupdates every minute.

Wall mounted thermostats are available for the Suite II unitsin automatic or manual changeover styles. All include a fanswitch for constant “on” operation or “automatic” for cycle op-eration with the compressor. When requested, all necessary re-lays and transformers are factory mounted and ready for attach-ment to field supplied low voltage wires. All thermostats are24-volt type and have dual Fahrenheit and Celsius temperaturesetpoint scales. Thermostat accessories include universal guardand locking cover. Individual thermostats include:

Standard Manual Changeover Single setpoint lever for one-stage heating and cooling. Sys-

tem “heat-off-cool” switch and fan “on-off” switch.

Standard Manual & Automatic Changeover Dual setpoint levers for one-stage or two-stage heating or

cooling operation. System “heat-off-auto-cool” switch and fan“on-auto” switch. Includes LED for “fault.”

Programmable Micro-electronic Manual &Automatic Changeover

This thermostat can be wired for either one-stage or two-stage unit operation, and is complete and ready for installation.Liquid Crystal display (LCD) is backlit and easy to read. Se-lectable F or C temperature display, automatic or manualchangeover as well. Setpoints are permanently held in memory(no batteries used) and retained during power outages. Displayupdates every minute. Features include 7-day programmabil-ity, four settings per day, keyboard lock code, time delay andadjustable deadband. System “heat-auto-cool-off” and fan “on-auto” switches.

Suite™ II Accessories – Field Installed

Figure 48. Standard Manual Changeover Thermostat

Figure 49. Standard Manual & Automatic ChangeoverThermostat

Figure 51. Non-programmable Electronic Manual &Automatic Changeover Thermostat

Remote Mounted ThermostatsAutomatic Change over, Remote Mounted Thermostat –

Thermostats can be obtained to switch from heating to coolingand from cooling to heating automatically. With automaticchange over, the operation of the heating cycle or the coolingcycle is determined by the temperature requirement of the space.Most thermostats with this feature are set to change over whenthe room temperature varies 3-1/2oF from the set-point. Theunit is placed in the cooling mode when the set-point is over 3-1/2oF; 3-1/2oF under the set point places the unit in the heatingmode. This 3-1/2oF variation is usually adjustable from a 1/2oFdead band to a 5oF dead band. Each cycle is run until the setpoint temperature is reached, then that cycle is de-energized.On some thermostats, the automatic change over function canbe overridden manually by moving the thermostat selectorswitch to “heat” or to “cool.”

The fan operation, with an automatic change over thermostat,is controlled by the fan selector switch. When placed in the“fan” mode, the fan runs continuously. When placed in the “auto”mode, the fan will only energize when the thermostat calls forheating or cooling. Automatic change over thermostats are con-nected the same way as that shown for standard low voltagethermostats illustrated in Figures 52 and 54.

Catalog 1350 / Page 30 of 40 (5-04)

Non-programmable Thermostat – The Suite II condition-ers can be easily controlled with a remote mounted, low volt-age wall thermostat. Several variations of low voltage wall ther-mostats are available. These variations can be separated intotwo categories: Non-programmable and Programmable. Eithertype of thermostat will work with the Incremental conditioner.Figures 52–55 illustrate the typical wiring schematics for properconnection of the Suite II series units to the wall thermostat.

Master/slave Operation – When using remote mountedthermostats, it is often necessary to control more than oneIncremental conditioner from a single thermostat. Figures 53and 55 illustrate schematically how a master unit and slaveunit(s) are connected to a single thermostat. Note that whenemploying a slave unit, the BK wire loop of the slave unit issevered. This takes the slave’s transformer out of the circuit,allowing it to duplicate the operation of the master unit. Themaster’s transformer handles 10 VA power draw. The masterand slave each draw 5 VA, therefore if more than one slave unitis to be used, the master transformer must be replaced with alarger one. The number of slave units that can be connected islimited to the maximum amperage of the thermostat contacts.

Figure 52. Non-programmable Thermostat

Factory SuppliedLow Voltage

Plug & ReceptacleDisconnect

Wires From Control

Programmable Thermostat – The major difference inconnecting the programmable thermostat is the requirement forthe transformer common, the introduction of the thermostatspower source. The BK wire loop, shown in Figure 54, is wherepower is supplied to operate the circuitry of theprogrammable thermostat. The BK wire loop usually connectsto the “transformer common” terminal of the thermostat. Theposition and designation of the terminal for incoming thermostatpower differs between manufacturers. Refer to the instructionsfurnished with the chosen thermostat to locate the properterminal. Note: It may be necessary to place a larger VAtransformer in the unit when using certain programmablethermostats. Check the VA draw of chosen thermostat to be sureit does not exceed 5 VA power draw.

Master/slave Operation With Programmable Thermostat –Master/slave operation can also be controlled by a program-mable thermostat. However, the connection of the master unitis slightly different than that of the Non-programmable ther-mostat. As described earlier, the programmable thermostat willneed the common to energize the electronics. This power canbe supplied by tapping into the BK wire loop. Note: It may benecessary to place a larger VA transformer in the unit whenusing certain programmable thermostats. Check the VA drawof chosen thermostat, plus the VA draw of the slave unit tobe sure it doesn’t exceed 10 VA power draw of the mastertransformer.

Figure 53. Master/slave with Non-programmable Thermostat

Figure 54. Programmable Thermostat



Wires From Control Master Unit

NOTE: When employing a slave, severthe BK wire loop of the Slave Unit. Wires From Control Slave Unit

Figure 55. Master/slave with Programmable Thermostat

Wires From Control



Wires From Control Slave Unit

Wires From Control Master Unit



NOTE: When employing a slave, severthe BK wire loop of the Slave Unit.

Catalog 1350 / Page 31 of 40 (5-04)

� Fan Cycle Switch — This concealed switch can be placedin a “cycle” or “constant” mode. When placed in the “cycle”position, it signals the fan to run only when theheating or cooling cycles are energized. When placed inthe “constant” position, the fan runs continuously. Con-tinuous fan operation maintains better temperature controland increases the number of air changes to theoccupied space.

� Special Paint — The standard paint used on the McQuaySuite II is Antique Ivory with a contrasting Oxford Brownsubbase. This color combination blends well with the mostinterior color schemes. A durable electrostatic, baked on,antique ivory urethane powder paint is used that resistssmudges and corrosion. Each steel component is paintedseparately and oven baked for durability.

The side panels and raised discharge grilles are injec-tion molded so that the color becomes a part of the poly-carbonate material. The polycarbonate material can be oversprayed in the field using an air dry paint. Very large jobsrequiring special paint may be factory supplied. Factoryapproval must be obtained before special colors areconsidered.

� Door Locks — Door lock kits can be quickly field installedon any Suite II series conditioner. These locks are designedto discourage unauthorized tampering with temperaturecontrol or fan operation. Each door lock is supplied withtwo matching keys and, if desired, a master key can besupplied to simplify maintenance.

Accessory OptionsIn addition to the many standard features supplied with Suite

II series units, there is a wide variety of optional featuresavailable.

Control OptionsThe standard unit mounted control is sufficient for most ap-

plications using the Suite II series unit. However, occasionallya need for more sophisticated control is required.Additional options are offered for applications requiring ad-vanced controls.

� Night Setback — This option protects against a room be-coming “too cold.” If the room temperature reaches a pointbelow 55oF, the night setback control automatically ener-gizes the heat cycle to prevent further temperaturedecline.

The night setback control operates whether the unitwas manually turned “off” or inadvertently left in the cool-ing mode. The night setback temperature is factory adjustedto 55oF. This temperature is field adjustable from45oF to 55oF.

� Wall Mounted Thermostat — The Suite II series Pack-aged Terminal conditioners can be supplied to accept a re-mote mounted thermostat. When requested, all necessaryrelays and transformers are factory mounted and ready forattachment to field supplied low voltage wires. A choice ofmanual or automatic changeover thermostats is available.Programmable thermostats are also acceptable and can befactory supplied when required.

� Temperature Limiting Feature — This mechanical de-vice allows the owner to preset the minimum and maxi-mum temperature limits to prevent overheated or overcooled spaces. The set points are infinitely adjustable andmarked in increments of 1oF. A cover plate, which meetsUL Splash Test requirements, is furnished to conceal thistemperature limiting mechanism from the room occupant,once adjustment has been made.

Figure 56. Door Lock

Suite™ II Accessories – Options

Catalog 1350 / Page 32 of 40 (5-04)

Design FlexibilityExtendAire is furnished with a 3 foot duct extension that is

painted to match the unit. The duct extension may not benecessary if the unit is to be installed directly adjacent to theadjoining wall.

For applications requiring the duct extension, creativearchitectural design can incorporate the duct extensioninto the room decor as illustrated below. The duct is constructedfrom heavy gauge steel lined with 6 lb. density fiberglassinsulation.

Design Applications Using ExtendAireExtendAire can be used with the electric heat and heat pump

units when conditioning of an adjacent room is desired. Ex-tendAire could eliminate the need for an additional conditionerwhen the cooling load in the adjoining room is minimal.

This saves initial hardware costs and reduces energy require-ments. ExtendAire also eliminates the need for an additionalhole in the building which may be aestheticallybeneficial.

Figure 58. ExtendAire Kit

Figure 59. ExtendAire Duct Section

Unit

Size

012/015

PrimaryActiveGrilles

Percent AirDischarge(PrimaryRoom)

Percent AirDischarge(Adjoining

Room)

3456

50627078

50383022

1. ExtendAire sections are furnished in two pieces so that rearhalf may be fastened to the wall and then the front half canbe snapped into place.

2. Four inactive grilles and three active grilles are furnished.The four inactive grilles may be converted to active grillesas required (see Table 5).

3. ExtendAire duct is factory insulated with 6 lb. density neo-prene coated insulation.

4. Maximum duct length is 36".5. Duct is reversible to discharge left or discharge right.

Suite™ II Accessories – Options

Table 5. ExtendAire Air Balancing Guide

Figure 57. *Extendaire Cabinet Option

ExtendAire™ *(Available on Specified Units Only)ExtendAire is a unique cabinet extension kit for unit sizes

012 and 015 that allows heating and cooling in two rooms fromone Packaged Terminal conditioner. ExtendAire can providesubstantial savings in apartment and office buildings by elimi-nating a separate conditioner for each room or office. ExtendAirefor the Suite series units is furnished with a three foot section ofduct and all required fasteners to properly attach it to the unit.Four inactive and three active discharge grilles are furnishedfor field balancing. Inactive grilles are easily converted to ac-tive grilles as required to balance the air discharge to each space.The percentage of air diverted can be adjusted from 24% to50% by the installer. The duct supplied is factory insulated with6 lb. density, “Toughskin” insulation to help prevent sweatingand reduce radiated sound through the duct.

Aesthetically pleasing shelves can be designed to fit beneaththe duct extension to decorate the otherwise unusable space.

Non Adjustable Grille by Others(25 in.2 Free Area – Min.) Suite II Conditioner

Primary DischargeSection End Cap3' Duct

Floor

3" Min.

16"

41/2"

71/2"

42"

43"36"

Catalog 1350 / Page 33 of 40 (5-04)

Applications of air conditioning equipment in a corrosiveenvironment require special consideration. Due to thecorrosive nature of salt water vapor, chlorine and acid vapor,drastic manufacturing changes are required to produce a unitthat will survive this environment. Any metal portion of theunit that is to be exposed to corrosive vapor must bespecially treated.

The Suite™ II series Incremental conditioner is availablewith special treatment to withstand corrosive installations. Listedbelow are the parts that receive special treatment.

� WaIl Sleeve – The entire cabinet/wall sleeve is speciallytreated, inside and outside, with a baked on urethane pow-der paint to protect it from the corrosive effects of salt spray.The color of the paint used on the cabinet/wall sleeve, wrap-around front panel, indoor discharge grille and grille trayis Antique Ivory.

� Sheet Metal Parts – Sheet metal parts exposed to the out-side are also specially treated with epoxy powder paint.This includes double coating the base pan, bulkhead, andfan shroud. All these are Oxford Brown.

� Condenser Coil – All standard copper tube/aluminum fincoils have natural electrolytic conduction due to thedissimilar metals. Locating these coils in a highly corro-sive atmosphere greatly accelerates the deterioration ofthese coils.

The philosophy of the Incremental equipment is toprevent corrosion of the coil. To accomplish this, the con-denser coil is constructed of copper tubes and copper fins.Use of one metal for the entire coil eliminates theelectrolysis without sacrificing heat transfer.

� Condenser Fan – Metal construction with 6-90galvanized coat. No additional special coating is requiredfor this component.

� Condenser Fan Motor – The standard motor used on thecondenser side is a totally enclosed, fan cooled PSC type.A corrosive atmosphere has little effect on theinternal workings of this sealed motor. The motor is coatedwith mastic, similar to the compressor.

� Compressor – Has a coating applied to the exterior. Theshell is covered with a heavy layer of black asphalt masticso that corrosive vapors cannot come in contact with anymetal portion of the compressor.

� Outdoor Louver – Made of aluminum, then etched andanodized for maximum corrosion protection. Etched,anodized aluminum louvers are available in a stamped orarchitectural style.

There is no coating or treatment that will allow the units tolast indefinitely in a corrosive environment. However, specialcoatings, like those outlined above, can extend the life of theunit dramatically.

Unit life expectancies in corrosive environments differgreatly from one application to the next. There are several fac-tors that influence the unit’s life expectancy, including the fol-lowing:

1. How close to the corrosive source the equipment operatesis a major factor. Obviously, the closer the unit is to thesource, the quicker it will show signs of deterioration.

2. What is located between the unit and the corrosive sourcewill have an effect on the unit’s longevity. In the case of anocean front, buildings, trees, and other obstacles often actas a filter to lower the salt concentration at the unit.

3. How concentrated the corrosive vapor in the atmosphereis, at the unit, will effect the unit’s longevity. If theequipment is located towards the prevailing winds, thecorrosive vapor concentration to that unit will tend to behigher than that of the unit which is sheltered from theprevailing winds.

4. How close to the ground the unit is installed affects the lifeexpectancy. Generally, the higher the unit is off the ground,the longer it will last due to lower concentrations.

5. How often the unit operates will have an effect on its lifeexpectancy. Each time the unit operates, it draws incorrosion laden air to condition the outdoor coil. A unitthat operates continuously will show signs of deteriorationsooner than a unit operating intermittently.

It is impossible to accurately predict the life expectancy ofequipment operating in a corrosive environment due to the manyfactors listed above. Equipment subjected to this environmentwill deteriorate very quickly unless it is properly treated. Treat-ing only outdoor louvers and wall sleeves do not protect thechassis from deteriorating. The chassis will be the first piece toshow signs of deterioration because of the moisture that devel-ops during normal operation. The compressor, base pan, bulk-head, and outdoor coil require the greatest attention. McQuayPackaged Terminal conditioners address the problems with cor-rosive atmosphere installations. A specially treated, PackagedTerminal conditioner can be applied in this environment andprovide long lasting, continuous service.

Seacoast Construction Option

Catalog 1350 / Page 34 of 40 (5-04)

Temperature Bin Method of Calculating EnergySavings

The temperature bin method of calculating energy savingshas become a universally applied method for determining en-ergy usage of air conditioning equipment. Below is listedweather data for various cities throughout the United States.This data comes from the U.S. Weather Bureau detailing theaverage number of hours the temperature occurs within each5oF temperature bin.

This information can be useful in determining the costeffectiveness of using a heat pump versus electric resistanceheating. To calculate the cost savings, follow the instructionsoutlined on page 36.

Energy Saving Options

Figure 60. Guest Room Control

Low voltage transformer (by others)

Switch #1

Switch #3

Switch #2

Unocc.

Occ.

Centralcontrol panel(by others)

Relay

Conditioner #1

Conditioner #2

Conditioner #3

Occ.

Unocc.Occ.

Unocc.

Thermostats can be obtained to switch from heating to cool-ing and from cooling to heating automatically. With automaticchange over, the operation of the heating cycle or the coolingcycle is determined by the temperature requirement of the space.Most thermostats with this feature are set to change over whenthe room temperature varies 3-1/2oF from the set-point. Theunit is placed in the cooling mode when the set-point is over 3-1/2oF; 3-1/2oF under the set point places the unit in the heatingmode. This 3-1/2oF variation is usually adjustable from a 1/2oFdead band to a 5oF dead band. Each cycle is run until the setpoint temperature is reached, then that cycle is de-energized.On some thermostats, the automatic change over function canbe overridden manually by moving the thermostat selectorswitch to “heat” or to “cool.”

The fan operation, with an automatic change over thermostat,is controlled by the fan selector switch. When placed in the“fan” mode, the fan runs continuously. When placed in the “auto”mode, the fan will only energize when the thermostat calls forheating or cooling.

Energy Saving Options

� Guest Room Control (GRC)Additional controls are provided for the Incremental

equipment, used widely by hotel/motel operations. GuestRoom Control (GAC) allows the owner to substantially re-duce energy consumption by de-energizing the equipmentin unoccupied spaces. The Incremental units are wired to acentral location, usually the front desk, where they are con-trolled by a toggle switch in a control panel (supplied byothers). The units remain de-energized until the room be-comes occupied, at which time the room clerk can ener-gize the equipment from the front desk (See Figure 60).

� Night Setback Control (NSB)There are additional energy savings with Night Setback

(NSB) Control. Night setback controls incorporate an ad-ditional unit mounted thermostat to maintain a minimum,predetermined room temperature. The temperature is set atthe factory to 55oF This set point is adjustable by the ownerto activate anywhere between 45oF and 55oF. If the roomtemperature drops below the owner selected minimum tem-perature, the heat cycle and indoor fan are energized untilthe night setback thermostat is satisfied. NSB overrides theunit control even if it is placed in the “off” position or inad-vertently left in the “cool” position.

� Fresh Air DampersMcQuay Packaged Terminal conditioners can be fur-

nished with an automatic fresh air damper in lieu of amanual fresh air damper. The automatic damper is wired inparallel to the indoor fan relay. If the unit is placed in the“cycle” mode, the fan and damper cycle as the thermostatcycles. If the unit is placed in the “constant” mode, the fanruns continuously and the damper is always open.

The automatic damper feature can be overridden by plac-ing the automatic damper switch in the “off” position. Inthis position, the damper remains closed during all cyclesof the unit.

Automatic Change over, Remote Mounted Thermostat

Catalog 1350 / Page 35 of 40 (5-04)

Table 6. Calculating Energy Savings Using Temperature Bin Method

Catalog 1350 / Page 36 of 40 (5-04)

Table 7 cont. Calculating Energy Savings Using Temperature Bin Method

HEATING – Elec. ResistanceAnnual (Hrs./Yr.) x (Htg. Btuh)Resistance Heat (KW)

= ––––––––––––––––––

3414

HEATING — Heat PumpAnnual (Hrs./Yr.) x (Htg. Btuh) x 1Heat Pump Heat (KW)

= ––––––––––––––––––

–––––

3414 C.O.P

COOLINGAnnual Cooling KWCooling KW Requirement

= ––––––––––– x Avg. Annual Cooling Hrs.

Power Factor

EXAMPLE: Baltimore, Maryland — Size 12 Electric Heat VS Size 12 Heat PumpResistance ➂ Heat Pump

Temp Bin Hours/Yr.➁ x Heating (Btuh) � 3414 = Heat (KW) � C.O.P. = KW Required

-15oF to -10oF 0 15,500 0 1 0

40oF to 45oF 770 4,500 1014.9 2.59 391.80

60oF to 65oF 729 500 106.8 3.27 32.65

TOTAL OF ALL TEMPERATURE BINS 6691.6 3606.00 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

(Heating KW) x ($/KWH) = Annual Heating Cost (Cooling KW) x (Cooling Hrs.) ➁ x ($/KWh) = Annual Cooling CostHeat Pump Ann. Savings = (Ann. Resist. Heating Cost + Ann. Cooling. Cost) - (Ann. Heat Pump Heating Cost + Ann. Cooling Cost)

NOTES:➀ Btuh required to maintain room at 65oF➁ Annual hrs./temp. bin, and average cooling hours comes from U.S. Weather Bureau — 5 yr. Average.➂ Cooling KW and C.O.P for each unit can be found on pages 17 and 18.Above method of calculating is for estimating purposes only. Actual tests will show exact savings.

Catalog 1350 / Page 37 of 40 (5-04)

Engineering Guide SpecificationsFurnish and install where shown on plans (packaged terminal air conditioners) (packaged terminal heat pumps) of the sizes and

capacities shown on the schedule. The units shall be located as shown on the drawings and shall include cabinet/wall sleeve, chassis,outdoor louver, and room cabinet. (Units furnished with hydronic heat shall also include a hydronic subbase, valve and appropriatecontrols).

All units shall be UL listed for safety and ARI certified for performance. Units shall be McQuay (Suite II Standard Model (SES)(SHS) (SEC) (SHC)) (Suite II Premium Model (DES) (DHS) (DEC) (DHC)), or equal. Overall dimensions for the basic unit shallnot exceed 421/2" wide, 161/2" high, and 22" deep. (Overall dimensions of the wall sleeve shall not exceed 16" high, 42" wideand 133/4" deep).

(Units furnished with hydronic heat shall not exceed 43" wide, 241/2" high and 22" deep).(Units furnished with an electrical subbase shall not exceed 43" wide, 241/2" high and 22" deep).All units shall operate on ____ volts, 60 Hz, single-phase power.The minimum energy efficiency ratio (EER) in BTU per hour per watt for each (PTAC) (PTHP) unit must be in compliance withASHRAE 90.1 replacement or new construction criteria, for all sizes.(The minimum COP for heat pumps, at 47oF DB outdoor, must be 2.7 for all sizes).

Heating/Cooling chassis – Chassis shall be slide-in, plug-in type with a self-contained, hermetically sealed refrigerant circuit.All chassis sheet metal parts shall be constructed of either powder-coated A-60 or G-60 galvanized steel for maximum corrosionresistance. The chassis shall consist of the following components:

Vibration isolated compressor; rifled copper tubed evaporator and condenser coils with high efficiency raised lance aluminumplate fins mechanically expanded to the tubes for maximum heat transfer; and a capillary restrictor type refrigerant metering device.Coils shall be factory tested at 300 psig. (Heat pump models shall also include reversing valve and charge balancing device). Apositive closing manual fresh air damper must be located within the chassis to provide fresh air during fan operation.

(Suite II Standard) – Airflow system shall include a single two-speed, totally-enclosed, permanently lubricated fan motor withexternal oilers powering both the outdoor fan and the indoor blower. Condenser fan shall be propeller-type with a slinger ring andshall be constructed of aluminum. Indoor blower fan shall be a centrifugal design and shall be constructed of galvanized steel with asteel hub.

(Suite II Premium) – Airflow system shall include separate fan motors for the condenser and evaporator sections. Thecondenser fan motor shall be a single-speed, totally enclosed, permanently lubricated fan motor with external oilers. Condenser fanshall be propeller-type with a slinger ring and shall be constructed of aluminum. The indoor fan motor shall be a two-speed, totallyenclosed, permanently lubricated fan motor with external oilers, and must be positioned on the indoor side of the bulkhead so as tobe completely within the conditioned, filtered airstream. The two indoor blower fans shall be a forward-curved centrifugal design (toprovide even airflow across the evaporator coil) and shall be constructed of aluminum with steel hubs.

During the cooling cycle: (Suite II Standard) – The compressor and the fan motor shall be energized. Condensation accumulated on the evaporator coil

shall be drained into the outdoor section where it is to be picked up by the condenser fan/slinger ring and evaporated against theoutdoor coil.

(Suite II Premium) – The compressor, the outdoor fan motor and the indoor fan motor shall be energized. Condensation accumu-lated on the evaporator coil shall be drained into the outdoor section where it is to be picked up by the condenser fan/slinger ring andevaporated against the outdoor coil.

During the heating cycle:(Suite II Standard) (electric resistance heat) – Only the fan motor and electric resistance heaters are energized. The compressor

shall not be energized. Heaters shall be open wire type with quick response and high limit cutout. Heaters shall be sized to meetheating requirements as shown on the schedule. Electric resistance heaters must be placed behind the indoor evaporator coil andmust not be visible or accessible through the indoor discharge grille.

(Suite II Premium) – Only the indoor fan motor and electric resistance heater are energized. The outdoor condenser fan motorand compressor shall not be energized. Heater shall be open wire type with quick response and high limit cutout. Heater shall be auniversal design such that the type of power cord used with the unit determines the heat kilowatt size. Electric resistance heaters mustbe placed behind the indoor evaporator coil and must not be visible or accessible through the indoor discharge grille.

Catalog 1350 / Page 38 of 40 (5-04)

During the heating cycle: (Suite™ II Standard) (hydronic heat) –– Only the fan motor, the (normally open) (normally closed) valve and automatic fresh

air damper shall be energized.

(Suite II Premium) – Only the indoor fan motor, the (normally open) (normally closed) valve and automatic fresh air dampershall be energized. The outdoor condenser fan motor and compressor shall not be energized.

During the heating cycle: (Suite II Standard) (reverse cycle heat pump) – The reversing valve, the compressor and the fan motor shall be energized.

Reverse cycle heating shall occur when the outdoor temperatures meet the user-adjustable temperature switch (factory set point isapproximately 35o).

(Suite II Premium) – The reversing valve, the compressor, the outdoor condenser fan motor and the indoor fan motor shall beenergized. Reverse cycle heating shall occur when the outdoor temperatures meet the user-adjustable temperature switch (factory setpoint is approximately 35o).

A temperature-sensing device shall be used to monitor the outdoor coil temperature to limit frost buildup.Condensation accumulated during reverse cycle heating must NOT be evaporated against the indoor coil so as to prevent con-

tamination of the indoor air with pollutants and odors. Condensation must be disposed of using an (external) (internal) drain systemas shown on plans.

Control module – Shall have a rotary selector switch marked OFF, HIGH HEAT, LOW HEAT, HIGH COOL, LOW COOL,HIGH FAN, LOW FAN and a self-contained, adjustable thermostat (with a field adjustable temperature limiting device). A fan cycleswitch shall be incorporated to allow constant fan operation or intermittent fan operation. Intermittent fan operation shall allow thefan to energize only when unit compressor or electric resistance heat is energized. On heat pump models, an adjustableemergency heat switch shall be incorporated to energize the electric resistance heaters at a specified minimum outdoortemperature. The control pad shall be overlaid with a polycarbonate membrane with ADA raised and color-coded lettering.

Room cabinet – Shall be sloped top, wraparound design with an 18-guage front panel that is phosphatized and coated with bakedon urethane powder paint, corrosion resistant finish to match the wall sleeve. Side panels shall be constructed of polycarbonatematerial with decorative vertical grooves and flame class rated at 94V per UL standard 494.

Discharge grille – Shall be an integral part of the front panel and shall be a raised style. Discharge grille shall be made of thesame polycarbonate material as the room cabinet side panels. Grille shall be sectional, two-position reversible, tamperproof, andcarry a flame test rating of 94V0 in accordance with UL standard 494.

Control access door – Shall be mounted on the right-hand side and must meet the spillage requirements of UL standard 484.

Filtration – Shall be accomplished using a permanent, washable polypropylene mesh filter. Foam type filters not acceptable.Filter must be a UL listed class II, 72% arrestant efficient (ASHRAE test) air filter with low resistance to airflow (0.15 w.g. at 1200CFM) and high dust holding capacity of 100 grams. Minimum Efficiency Reporting Value (MERV) 4.

Wall sleeve – Shall be entirely constructed of G-60 galvanized, phosphatized, 18-gauge steel with baked on urethane powder coatcorrosion resistant finish, insulated on interior top and sides. Wall sleeves with ordinary enamel finish or those made frompolymeric material are not acceptable. Wall sleeves shall have factory provisions for use of appropriate fastening devices to securesleeve to the wall through the sides.

Outside air louvers – Shall be (stamped) (architectural) anodized aluminum as shown on plans. Louver shall be (finishednatural) (painted) as shown on the schedule.

(Stamped louvers shall be heavy gauge anodized aluminum of no less than 16-gauge).(Architectural louvers shall have rounded corners or be supplied with end caps).Special field fabricated louvers must be approved by the PTAC manufacturer as to free area and air circulation

requirements.

Engineering Guide Specifications

Catalog 1350 / Page 39 of 40 (5-04)

Subbase (electrical) – A (3")(4") electrical subbase shall be furnished as shown on plans. Each electrical subbase shall be ULlisted and conform to the National Electrical Code. Subbase must have adjustable side channels with predrilled adjusting holes andscore lines. Subbase shall have four (4) adjustable leveling legs each with 1" adjustment.

Subbase (hydronic) – An 8" high, hydronic heating subbase shall be furnished as shown on plans. Subbase shall contain a 2-row,5/8" diameter copper tubed, aluminum plate finned coil for use with hot water or steam; (normally open) (normally closed), lowvoltage electric valve for (hot water) (steam) heating; and provisions for mounting a receptacle. (Subbase must be supplied withfactory installed fuse and disconnect sized for PTAC unit ampacity rating.) The subbase must have adjustable side channels capableof extending to any wall thickness. The subbase shall have six (6) adjustable leveling legs each with 1" adjustment.

ExtendAire™Optional Ducting – Furnish extended ducts as required on plan. Duct extensions shall be internally lined with 1/4" fiberboard, 6

lb. density to prevent condensation on the exterior surface. Shall be factory painted with baked on urethane based powder paint tomatch the finish of the basic cabinet. Each extension section shall be furnished in two pieces such that the rear half may be fastenedto the wall and the front half then snapped in place without the use of screws or tools. Duct cross-sectional dimensions shall notexceed 41/2" x 71/2".

Manufacturer shall furnish five (5) blank (inactive) and two (2) active outlet grilles. Each grille shall be four (4) position reversi-ble stamped from 20-gauge steel, and coated with a baked on urethane powder paint to insure maximum corrosion resistance.Inactive grilles shall be converted to active grilles, as required by the installation, by prying the blank-off plate from the back of thegrille. The installer shall select the number of active grilles in the primary discharge section that will provide diversion of thespecified percentage of air to the adjoining room outlet. The percent of air diverted shall be adjustable from 24% to 50% as outlinedin the manufacturer’s selection table.

Engineering Guide Specifications

Approximate Shipping Weights

Subbase:3" (76mm) High Electrical .............................. 10 lbs. (4.5 kg)4" (102mm) High Electrical ............................... 12 lbs. (5 kg)8" (203mm) High Hydronic ............................... 20 lbs. (9 kg)

Extendaire:Primary Discharge Section ............................ 10 lbs. (4.5 kg)36" (914mm) Duct Section ............................. 22 lbs. (10 kg)

Chassis:Size 007 – 141 lbs. (64 kg) .......................... 139 lbs. (63 kg)Size 009 – 145 lbs. (66 kg) .......................... 143 lbs. (65 kg)Size 012 – 149 lbs. (68 kg) .......................... 147 lbs. (67 kg)Size 015 – 153 lbs. (69 kg) .......................... 151 lbs. (69 kg)

Wall Sleeve:Uninsulated .................................................... 36 lbs. (16 kg)Insulated ........................................................ 37 lbs. (16 kg)

Room Cabinet .................................................. 10 lbs. (4.5 kg)Louvers:

Flush-stamped ................................................... 6 lbs. (3 kg)Architectural ....................................................... 8 lbs. (4 kg)

© 2004 McQuay International • www.mcquay.com • 800-432-1342 Catalog 1350-6 / (Rev 5-04)

®

This document contains the most current product information as of this printing. For the most up-to-dateproduct information, please go to www.mcquay.com.

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